#include <stdio.h>
#include <sys/time.h>

int main(){
  struct timeval tv;
  tv.tv_sec = 16777000;
  tv.tv_usec = 0;

  if( settimeofday(&tv,NULL) == - 1 ){
    perror("settimeofday");
    return -1;
  }

  printf("System time set successfully.\n");
  return 0;
}
